US4224826A - Flow measuring means - Google Patents

Flow measuring means Download PDF

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Publication number
US4224826A
US4224826A US06/001,149 US114979A US4224826A US 4224826 A US4224826 A US 4224826A US 114979 A US114979 A US 114979A US 4224826 A US4224826 A US 4224826A
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Prior art keywords
pipe
chamber
flow
diameter
turbulent
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US06/001,149
Inventor
John McLoughlin
Neocles Athanasiades
Yehuda Rotblum
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ROM Acquisition Corp
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John McLoughlin
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Anticipated expiration legal-status Critical
Assigned to JNT LINK, LLC reassignment JNT LINK, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ATHANASIADES, NEOCLES G., MCLOUGHLIN, JOHN E., ROTBLUM, YEHUDA
Assigned to ROM ACQUISITION CORPORATION reassignment ROM ACQUISITION CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JNT-LINK, LLC (ALSO KNOWN AS JNT LINK, LLC)
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus

Definitions

  • This invention relates to liquid flow means and more particularly to means for measuring flow in a pipe having turbulent flow conditions.
  • the present invention inserts a chamber or plenum in the pipe which tends to substantially remove the turbulence and a liquid flow meter is inserted in the pipe downstream from the chamber where the flow is not turbulent.
  • the chamber has a diameter larger than the diameter of the pipe.
  • a principal object of the invention is to provide new and improved liquid flow measuring means.
  • Another object of the invention is to provide new and improved liquid flow measuring means in cramped spaces having bends and valves which cause turbulent flow.
  • Another object of the invention is to provide new and improved flow measuring means for measuring liquid flow in a pipe having turbulent flow comprising, a chamber inserted in the pipe, a chamber having a diameter substantially larger than the diameter of the pipe, and a flow meter mounted in the pipe downstream from the chamber, whereby the chamber substantially reduces turbulence in the pipe and provides a reliable flow measurement.
  • FIG. 1 is a side view partly in section of an embodiment of the invention.
  • FIGS. 2 to 5 are side views partly in section of other embodiments of the invention.
  • FIG. 1 shows a typical arrangement of the pipe 1, connected to a water source which feeds water through the quarter turn valve 2, to the pipe 3.
  • the flow bounces off the side of the pipe 3 and is quite turbulent.
  • the turbulence is substantially removed by inserting a chamber 4 in pipe 3 and then inserting a flow meter 5 downstream from the chamber.
  • the flow meter may be of the type which has a paddle 6 having magnets which is rotated by the flow.
  • the coil 7 picks up electrical pulses from the rotating magnets and the pulse rate is proportional to the rate of flow.
  • the chamber 4 would prefererably be about four inches in diameter and the length of the chamber along the axis of the pipe is in the neighborhood of two pipe diameters.
  • the insertion of the chamber or plenum in the pipe permits the turbulence to subside and provides a relatively smooth flow at the point where the flow meter 5 measures the flow.
  • FIG. 2 shows another embodiment of the invention wherein the chamber 8 is a bell shape and the flow meter 9 is inserted in the pipe 10 downstream from the chamber 8.
  • the chamber has threaded ends so that they can easily be screwed onto the pipes.
  • the bell chamber 8 of FIG. 2 may be a standard plumbing part which is readily available.
  • FIG. 3 shows another embodiment of the invention wherein the turbulence reducing chamber 11 has the out pipe 12 extending substantially into the triangular cross-section chamber. In this arrangement, turbulent water is caught in the traps 11a, 11b and reversed.
  • FIG. 4 shows another embodiment of the invention wherein the turbulence reducing chamber 14 has a circular solid plate 15 mounted in its central portion.
  • the diameter of the circular plate is substantially equal to the D 1 of the pipe 16 having the turbulent flow.
  • FIG. 5 shows another embodiment of the invention wherein the chamber 17 has a perforated baffle plate 18 having a diameter larger than the diameter of the pipe 18 which is supplying the turbulent flow.
  • the present invention provides simple and inexpensive means for obtaining reliable flow means within cramped space where the flow is likely to be turbulent.
  • the invention is advantageous for fire truck installation where the space is cramped and where reliable readings of the flow to hoses is necessary.

Abstract

Flow measuring means in a pipe having turbulent flow. A chamber is inserted in the pipe. The chamber having a diameter substantially larger than the diameter of the pipe. A flow meter is mounted in the pipe downstream from the chamber. The chamber substantially reduces turbulence in the pipe and provides a reliable flow measurement.

Description

This invention relates to liquid flow means and more particularly to means for measuring flow in a pipe having turbulent flow conditions.
It is necessary to measure liquid flow in many cases, for instance, in fire truck pumping equipment. In fire trucks the space is cramped and there are no long lengths of straight pipe. On the contrary, there are many pipe bends and valves crowded into a small space, these conditions make the liquid flow turbulent within the pipes.
The present invention inserts a chamber or plenum in the pipe which tends to substantially remove the turbulence and a liquid flow meter is inserted in the pipe downstream from the chamber where the flow is not turbulent. The chamber has a diameter larger than the diameter of the pipe.
Accordingly, a principal object of the invention is to provide new and improved liquid flow measuring means.
Another object of the invention is to provide new and improved liquid flow measuring means in cramped spaces having bends and valves which cause turbulent flow.
Another object of the invention is to provide new and improved flow measuring means for measuring liquid flow in a pipe having turbulent flow comprising, a chamber inserted in the pipe, a chamber having a diameter substantially larger than the diameter of the pipe, and a flow meter mounted in the pipe downstream from the chamber, whereby the chamber substantially reduces turbulence in the pipe and provides a reliable flow measurement.
These and other objects of the invention will be apparent from the following specification and drawings of which:
FIG. 1 is a side view partly in section of an embodiment of the invention.
FIGS. 2 to 5 are side views partly in section of other embodiments of the invention.
Referring to the figures, FIG. 1 shows a typical arrangement of the pipe 1, connected to a water source which feeds water through the quarter turn valve 2, to the pipe 3. As shown in FIG. 1, when the quarter turn valve is not fully opened, the flow bounces off the side of the pipe 3 and is quite turbulent. The turbulence is substantially removed by inserting a chamber 4 in pipe 3 and then inserting a flow meter 5 downstream from the chamber. The flow meter may be of the type which has a paddle 6 having magnets which is rotated by the flow. The coil 7 picks up electrical pulses from the rotating magnets and the pulse rate is proportional to the rate of flow. In a typical installation, if the pipe 3 is 21/2 inches in diameter then the chamber 4 would prefererably be about four inches in diameter and the length of the chamber along the axis of the pipe is in the neighborhood of two pipe diameters. The insertion of the chamber or plenum in the pipe permits the turbulence to subside and provides a relatively smooth flow at the point where the flow meter 5 measures the flow.
FIG. 2 shows another embodiment of the invention wherein the chamber 8 is a bell shape and the flow meter 9 is inserted in the pipe 10 downstream from the chamber 8. The chamber has threaded ends so that they can easily be screwed onto the pipes. The bell chamber 8 of FIG. 2 may be a standard plumbing part which is readily available.
FIG. 3 shows another embodiment of the invention wherein the turbulence reducing chamber 11 has the out pipe 12 extending substantially into the triangular cross-section chamber. In this arrangement, turbulent water is caught in the traps 11a, 11b and reversed.
There is no restriction for large flows from a fully opened valve 2 since that flow will be directed in line with the out pipe.
FIG. 4 shows another embodiment of the invention wherein the turbulence reducing chamber 14 has a circular solid plate 15 mounted in its central portion. The diameter of the circular plate is substantially equal to the D1 of the pipe 16 having the turbulent flow.
FIG. 5 shows another embodiment of the invention wherein the chamber 17 has a perforated baffle plate 18 having a diameter larger than the diameter of the pipe 18 which is supplying the turbulent flow.
Therefore, the present invention provides simple and inexpensive means for obtaining reliable flow means within cramped space where the flow is likely to be turbulent.
The invention is advantageous for fire truck installation where the space is cramped and where reliable readings of the flow to hoses is necessary.

Claims (3)

It is claimed:
1. Means for measuring liquid flow in a pipe having turbulent flow comprising:
a chamber inserted in the pipe,
a chamber having a diameter substantially larger than the diameter of the pipe, and
a flow meter mounted in the pipe downstream from the chamber,
the chamber being substantially triangular and the downstream pipe extends into the chamber,
whereby the chamber substantially reduces turbulence in the pipe and provides a reliable flow measurement.
2. Apparatus as in claim 1 having a baffle plate mounted in the central portion of the chamber.
3. Apparatus as in claim 2 wherein the baffle plate is perforated.
US06/001,149 1979-01-05 1979-01-05 Flow measuring means Expired - Lifetime US4224826A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520374A (en) * 1981-10-07 1985-05-28 Epson Corporation Ink jet printing apparatus
US5014552A (en) * 1988-12-15 1991-05-14 Yamatake-Honeywell Co., Ltd. Flow meter
DE4312067A1 (en) * 1993-04-13 1994-10-20 Entec Mestechnik Gmbh Valve
US5540107A (en) * 1991-09-23 1996-07-30 Futureflo Systems, Inc. Liquid flow meter
US5697403A (en) * 1993-07-12 1997-12-16 Mitsubishi Jukogyo Kabushiki Kaisha Denitrification system
US5935426A (en) * 1997-08-08 1999-08-10 Teledyne Industries, Inc., A California Corporation Water treatment device with volumetric and time monitoring features
US6149801A (en) * 1997-08-08 2000-11-21 Water Pik, Inc,. Water treatment device with volumetric monitoring features
DE102007039537A1 (en) * 2007-08-21 2009-02-26 Bundesrepublik Deutschland, vertr. d. d. Bundesministerium für Wirtschaft und Technologie, dieses vertr. d. d. Präsidenten der Physikalisch-Technischen Bundesanstalt Fluid e.g. water, flow leveler for use in flow measuring system, has fitting possessing fitting-cross section that is larger than downstream cross section and/or upstream cross section provided in upstream end of pipeline
US8839876B2 (en) 2010-07-13 2014-09-23 Rom Acquisition Corporation Hydraulic system and method for delivering electricity, water, air, and foam in a firefighting apparatus
US9625915B2 (en) 2009-09-15 2017-04-18 Rom Acquisition Corporation Complete integrated fireground control system and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1090100A (en) * 1912-06-27 1914-03-10 Allis Chalmers Mfg Co Energy-absorber.
US1759239A (en) * 1923-10-08 1930-05-20 Morrison Montford Flow meter and method of making same
US3374673A (en) * 1965-10-01 1968-03-26 Technology Inc Mass flowmeter structure
US3733898A (en) * 1970-06-05 1973-05-22 Oval Eng Co Ltd Flow conditioning apparatus
US3945402A (en) * 1974-10-25 1976-03-23 Murphy Peter J Laminar flow pipe system
US4130017A (en) * 1977-11-01 1978-12-19 Westinghouse Electric Corp. Flow rate measuring device
US4142413A (en) * 1976-06-08 1979-03-06 N.V. Nederlandse Gasunie Device for improving the flow profile in a gas line

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1090100A (en) * 1912-06-27 1914-03-10 Allis Chalmers Mfg Co Energy-absorber.
US1759239A (en) * 1923-10-08 1930-05-20 Morrison Montford Flow meter and method of making same
US3374673A (en) * 1965-10-01 1968-03-26 Technology Inc Mass flowmeter structure
US3733898A (en) * 1970-06-05 1973-05-22 Oval Eng Co Ltd Flow conditioning apparatus
US3945402A (en) * 1974-10-25 1976-03-23 Murphy Peter J Laminar flow pipe system
US4142413A (en) * 1976-06-08 1979-03-06 N.V. Nederlandse Gasunie Device for improving the flow profile in a gas line
US4130017A (en) * 1977-11-01 1978-12-19 Westinghouse Electric Corp. Flow rate measuring device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520374A (en) * 1981-10-07 1985-05-28 Epson Corporation Ink jet printing apparatus
US5014552A (en) * 1988-12-15 1991-05-14 Yamatake-Honeywell Co., Ltd. Flow meter
US5540107A (en) * 1991-09-23 1996-07-30 Futureflo Systems, Inc. Liquid flow meter
DE4312067A1 (en) * 1993-04-13 1994-10-20 Entec Mestechnik Gmbh Valve
DE4312067B4 (en) * 1993-04-13 2007-11-22 Aquametro Ag Valve
US5697403A (en) * 1993-07-12 1997-12-16 Mitsubishi Jukogyo Kabushiki Kaisha Denitrification system
US6106705A (en) * 1997-08-08 2000-08-22 Teledyne Industries, Inc. Water treatment device with volumetric and time monitoring features
US6149801A (en) * 1997-08-08 2000-11-21 Water Pik, Inc,. Water treatment device with volumetric monitoring features
US6284129B1 (en) 1997-08-08 2001-09-04 Water Pik, Inc. Water treatment device with volumetric and time monitoring features
US6517707B2 (en) 1997-08-08 2003-02-11 Water Pik, Inc. Water treatment device with volumetric and time monitoring features
US5935426A (en) * 1997-08-08 1999-08-10 Teledyne Industries, Inc., A California Corporation Water treatment device with volumetric and time monitoring features
DE102007039537A1 (en) * 2007-08-21 2009-02-26 Bundesrepublik Deutschland, vertr. d. d. Bundesministerium für Wirtschaft und Technologie, dieses vertr. d. d. Präsidenten der Physikalisch-Technischen Bundesanstalt Fluid e.g. water, flow leveler for use in flow measuring system, has fitting possessing fitting-cross section that is larger than downstream cross section and/or upstream cross section provided in upstream end of pipeline
US9625915B2 (en) 2009-09-15 2017-04-18 Rom Acquisition Corporation Complete integrated fireground control system and method
US8839876B2 (en) 2010-07-13 2014-09-23 Rom Acquisition Corporation Hydraulic system and method for delivering electricity, water, air, and foam in a firefighting apparatus

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Owner name: JNT LINK, LLC, NEW YORK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MCLOUGHLIN, JOHN E.;ATHANASIADES, NEOCLES G.;ROTBLUM, YEHUDA;REEL/FRAME:024915/0887

Effective date: 20100805

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Owner name: ROM ACQUISITION CORPORATION, MISSOURI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JNT-LINK, LLC (ALSO KNOWN AS JNT LINK, LLC);REEL/FRAME:029548/0047

Effective date: 20121228